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Fortinet FortiOS vs OPNsense comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
318
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Fortinet FortiOS
Ranking in Firewalls
27th
Average Rating
8.4
Reviews Sentiment
8.2
Number of Reviews
79
Ranking in other categories
No ranking in other categories
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
39
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.8%, up from 17.8% compared to the previous year. The mindshare of Fortinet FortiOS is 1.0%, up from 1.0% compared to the previous year. The mindshare of OPNsense is 12.8%, down from 17.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls
 

Featured Reviews

EhabAli - PeerSpot reviewer
Efficient, user-friendly, and affordable
In the past, NSS Labs was utilized to test files and verify the numbers and datasheets. It would be beneficial to have an organization or testing lab that can verify the numbers in our datasheets since changes are frequently made, which can be inconvenient for review. For instance, when comparing different competitors such as Forcepoint, Palo Alto, and Check Point, the throughput or numbers in the datasheet may be lower than the actual numbers. Conversely, Fortinet typically reports very high numbers, but they cannot be replicated in the real world. Therefore, it would be advantageous for them to partner with a neutral testing organization such as NSS Labs to validate these numbers, thus providing more credibility and comfort to everyone regarding the accuracy of the datasheets. For the migration, everyone has a firewall in use and I am selling Fortinet. Typically, I am replacing another firewall. Previously, there was a tool available to convert configurations from one firewall, such as Palo Alto, to Fortinet, but this tool is no longer free. If it could be made free again, it would be very beneficial. This tool shows a lot of promise and is very good. Making it free would help many companies deliver their products in a more efficient and integrated way. It would also be more valuable to include the tool with the firewall package or license instead of having to pay extra for it. Paying extra puts more pressure on small companies to deliver the firewall and complete the configuration, especially if they have hundreds or thousands of policies. It's very painful to move through these policies line by line. The stability has room for improvement. When it comes to Secure SD-WAN, everything is fine. They are going the right way. SD-WAN is very promising. They can provide the SD-WAN solution separately, but they will not take this approach because even the smallest firewall can support the features, so there is no need to have a separate service or appliance. They are following the right steps, and there is nothing to be improved. Feature-wise, I'm really satisfied with the new release, and the features they have added. For now, it's fine.
Harshama Silva - PeerSpot reviewer
We have improved network security with user-friendly controls and high threat intelligence
FortiOS is very user-friendly and easy to configure for L1, L2, and L3 personnel. Its web filtering, application control, and IPS features are very user-friendly, easy to manage, and deploy. The threat intelligence in FortiOS is very high, and the system is scalable without additional licensing costs. FortiOS allows us to expand the number of users and devices as our network needs grow.
Eddy Ramirez - PeerSpot reviewer
Good interface and firewall capabilities and overall easy to use
The security has improved as we can isolate the network. We can do attrition prevention via a tool that comes with the solution. We can have a VPN solution in place for those that work from home, outside the network, in a secure manner. We also like that it offers good authentication. It offers radius-based authentication, which has been useful for the company. The main platform is under the Open VPN firewall. The solution has high availability. When we have different ISPs, we can actually load balance those links or actually put some priority or even classify the traffic that might go into one ISP or another.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Initial setup is straightforward. There weren't too many issues with setting it up. It takes one hour or so."
"The security features are about the best that I've seen anywhere."
"The most valuable feature of Fortinet FortiGate is load balancing. It can provide central management and VPNA. Additionally, it has enhanced our security environment."
"The product has been very stable, based on my ten to eleven years of experience."
"The initial setup is very straightforward and easy, with wizards helping to configure the device efficiently."
"The Intrusion Prevention System and the web filtering are both working well."
"Fortinet FortiGate is easy to use. Anyone can easily maintain it."
"Their reliability and their policy of pre-shipping replacements when a unit has failed."
"The most valuable features of Fortinet FortiOS are its constant updates and definitions."
"It's very easy to use."
"It has a lot of scalability abilities which makes it easy to scale."
"I like that the firewall gives me a lot of control in terms of outgoing and inbound traffic, and it scores better in deep packet inspections when compared with the Azure Firewall."
"FortiOS' most valuable features are management, security, and easy updates with no downtime."
"The most valuable features of Fortinet FortiOS are the SD-WAN, SSL inspection, and IDS/IPS functions."
"The most valuable feature of this solution would be the caching feature."
"The solution provides good firewall and antivirus protection."
"OPNsense is easy to scale when running on the hardware."
"The interface and the dashboard are the most valuable features of this solution."
"The DNS-level filtering is impressive for thwarting time scanners."
"We can open a new VPN connection easily. It's much easier than with Fortinet in our experience."
"URL blocking, Wireguard, Tail Scale, Engine Blocker, and VPN are the most valuable features for me."
"OPNsense is highly stable."
"The solution has high availability."
"The system in general is quite flexible."
 

Cons

"I would like to have logs, monitoring, and reporting for a month without extra fees."
"The support we receive when we need to upgrade is not satisfactory and has room for improvement."
"It is quite new for us, and we need to go more in-depth into the monitoring tools. It provides different features that we need to do what we want. So far, it is okay for us. In terms of improvement, in the future, they can provide a faster implementation of features. Some of the features are first available in other solutions. Fortinet sometimes takes a little bit longer than other solutions, such as Check Point, to implement new features."
"I would like Fortinet to add more automation to FortiGate."
"There are some tiny bugs that sometimes affect the operations. In the past revision of it, there was a bug. Because of the bug, we had to downgrade the version. It happened only with the last revision."
"Some of the web policy reports could be improved."
"The improvement is related to logs. Instead of the CLI, we should be able to have more insights into the logs of the firewall in the GUI."
"Its filtering is sometimes too precise or strict. We sometimes have to bypass and authorize some of the sites, but they get blocked. We know that they are trusted sites, but they are blocked, and we don't know why."
"Lacks flexibility for different scenario configurations."
"It could more scalable for the lower end users."
"Fortinet FortiOS is stable. However, last month we had an issue with a released patch. We had to receive another update to fix the firewall issue consuming all of the resources. The patches should be tested more before going into circulation."
"There is room for improvement in the reporting part. The reporting is only for logging data, and it's just a tabulation of the log in the report. I would like to be able to take down more information in the event of an incident."
"Compared to other market leaders like Palo Alto and Check Point, FortiOS has many bugs in its initial releases."
"I would like to see the features of FortiAnalyzer included in Fortinet FortiOS. Right now, you're required to have an additional license and a different device for features such as processing the log, reporting, and analyzing traffic."
"They need to integrate more with the SD-WAN."
"We had assistance from one person from our local vendor for the implementation."
"I think the most important thing is that it should be easily accessible, but currently, that doesn't seem to be the case. We need a hardware platform that's based on common standards and open computing principles, which would be like a commodity and benefit us greatly."
"There is room for improvement in SSL inspection."
"The reporting part could be better."
"pfSense has better performance and quicker updates."
"The IPS solution could be more reliable."
"The interface needs to be simplified. It is not user-friendly."
"On the customer-side, because I'm a small business, I need a cheaper or free solution option."
"The scalability needs improvement."
 

Pricing and Cost Advice

"We are on an annual license to use Fortinet FortiGate."
"The price is high compared to some of the other solutions."
"It has a competitive price."
"The initial setup is super straight forward and as far as the licensing goes for the small product that we have, the pricing was pretty competitive. It wasn't as simple and as cheap as a SonicWall but for the service we would get it was a good price."
"The price depends on the size of the company. From the beginning, you just want to know the internet bandwidths, speed, and the number of users to be able to offer the right product and model. They have a lot of products in FortiGate according to the size of the company, like 200D and 300D."
"While Fortinet FortiGate has a higher price point compared to Sophos XG, its user-friendly interface justifies the cost."
"It is an inexpensive solution."
"Fortinet has more device options that are affordable for small businesses than Palo Alto, and its enterprise-level models are also cheaper. Palo Alto also has a separate license for VPN connections and SD-WAN, but FortiGate offers these features standard."
"We pay an annual license fee. It is rather expensive so I would like to perhaps see a drop in price in the future."
"It is not cheap; it is also not expensive. It is somewhere in the middle."
"It is not cheap."
"FortiOS is affordable, but its price could be lower."
"Pricing depends on implementation and licensing choices and is usually not a practical budget choice for small businesses."
"We had a three-year license to use Fortinet FortiOS and we are going to renew it this year."
"A medium 100 or 200 Series box costs around $3000, and the software cost is around 55% of the hardware cost."
"The support contracts are usually about $100 - $200 a device."
"The price of OPNsense is good."
"There are no licensing costs for OPNsence."
"I've used the free version. My computer with two network cards at home allows me to try as many different software options as I want. I did pay for the license, but it was for the Zenarmor license, which is the packet inspection tool. They use AI for packet inspection, which integrates with OPNsense and pfSense."
"The solution is not expensive."
"OPNsense is open source software so at this time it is free for us to use."
"OPNsense is an open-source solution and it is free to use."
"It is a free solution, and when you compare it to alternatives like FortiGate, which is quite powerful but also costly, the value becomes evident."
"Its pricing is unbeatable in comparison to other firewalls. You can have a small instance that could be €80 a month with the hardware underneath. Azure Firewall and FortiGate are out of the question at this price. If you are on a public cloud, you need the underlying infrastructure. Other than that, there is no additional cost. If you have it on-prem, you have to buy the server or the appliance. The hardware cost is replaced with the infrastructure cost in the cloud. You also have costs for the public IPs and underlying VMs, but that's not related to OPNsense. It would be the same for a FortiGate deployment on Azure. You need a FortiGate license, and you need the underlying infrastructure that scales up depending on your needs."
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Top Industries

By visitors reading reviews
Educational Organization
22%
Computer Software Company
14%
Comms Service Provider
6%
Manufacturing Company
6%
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
9%
Government
8%
Computer Software Company
16%
Comms Service Provider
12%
Government
8%
Educational Organization
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
When you compare these firewalls you can identify them with different features, advantages, practices and usage a...
What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...
Features comparison between Palo Alto and Fortinet firewalls
In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it...
What do you like most about Fortinet FortiOS?
The SSL VPN is fee for use is most attractive.
What is your experience regarding pricing and costs for Fortinet FortiOS?
I am aware that Fortinet products are somewhat pricey, similar to Cisco equivalents, however, they have justified the...
What is the difference between PfSense and OPNsense?
Two of the most common and well recognized firewalls, PfSense and OPNsense both support site-to-site IPsec VPN and cl...
What do you like most about OPNsense?
What I like the most about OPNsense is that it offers an easy-to-use dashboard for device management and control.
What is your experience regarding pricing and costs for OPNsense?
I consider the pricing of OPNsense to be high when compared with other market products. However, as a free firewall p...
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
No data available
No data available
 

Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
1. Deciso B.V. 2. iXsystems, Inc.  3. EuroBSDCon  4. Netgate  5. Claranet  6. Voleatech  7. Open Systems AG  8. Securebit AG  9. Proxmox Server Solutions GmbH  10. AVM Computersysteme Vertriebs GmbH  Additional customers include: T-Systems International GmbH, Deutsche Telekom AG, Vodafone GmbH, 1&1 IONOS SE, OVHcloud, Hetzner Online GmbH, Strato AG, PlusServer GmbH, Host Europe GmbH, United Internet AG, 1&1 Versatel Deutschland GmbH, QSC AG, Bechtle AG, Cancom SE, Computacenter AG & Co. oHG, T-Systems Multimedia Solutions GmbH, Atos SE, Capgemini SE, Accenture plc, IBM Corporation, Hewlett Packard Enterprise Company, Cisco Systems, Inc.
Find out what your peers are saying about Fortinet FortiOS vs. OPNsense and other solutions. Updated: January 2025.
839,255 professionals have used our research since 2012.